Telephone system



Oct. 14, 1952 H. w. LiER E T.AL

TELEPHONE SIYYSTEM Original Filed Dec.- 28, 1946 21 Sheets-Sheet 3 Oct. 14, 1952 H; W. pgLzEn ETAL TELEPHONE SYSTEM 21 Sheets-Sheet 4 8 'SOd 'EIOdO 'S,S0d 'HBdO BlVICIEIWBBlNl Original Filed Dec. 28, 1946 3 'SOd 'HHdO INVENTORS Harvey W Ba/zer John E Osf/ine OQN m mQFEO ZEPZ HG BY M,

FIG. 4

21 Sheets-Sheet 6 SIMPLEX. CONNECT 65R 664 TOLL) SLAVE TELEPHONE -SYSTEM S H U NT H. w. BALIZER 21 M.

men SLAVE R620 SUPY.

Oct. 14, 1952 Original Filed Dec'. 28, 1946 wi elz WA 6l4 FIG. 6

Oct. 14, w BAEZER ETA'L TELEPHONE SYSTEM Original Filed Dec. 28, 1946 21 Sheets-Sheet 7 SIMPLEX R'IIO PULSE 722 SWITCH {E1720 REV. BATT.

INVENTORS F 7 Harvey W Ba/zer John E. Osfline Oct. 14, 1952 "H. w. 'sAuzEr-z HEI'VAL 2,514,174 TELEPHONE ss'is sm Original Filed Dec. 28/1946 21 Sheets-Sheet 11 RlllO Rll30 LOCALJi REV n4:

BUSY) suPY RIMMH E gym 3' SEIZURE K H47 FIG. ll

INVENTORS Harvey W Ba/zer Y John E. Osfline Oct. 14, 1952 H. w. BALZE'R ETAL TELEPHONE SYSTEM 21 Sheets-Sheet 16 Original Filed Dec. 28, I946 INVENFRS Harvey W Balzer BY John E. Osfline M WM Ahys Oct. 14, 1952 "H. WQ 'BALZ ER Er-AL 2,614,174

trstsmoua SYSTEM Original Filed Dec. 28, 1946 "'21 Sheets-Sheet 17 v 

